<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
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    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <script>
        function User(name){
            this.name = name;
            this.show = function(){
                console.log(this.name)
            }
        }
        let user = new User('礼拜');
        function createByObject(obj,...args){
            const constructor = Object.getPrototypeOf(obj).constructor;
            return new constructor(...args);
        }
        
        let zh = createByObject(user,'小黑');
        zh.show();
    </script>
</body>
</html>